v0.1.3

Fixed

• The file map no longer picks up .nix files from nested repositories and
  git worktrees (e.g. an untracked .claude/worktrees/* inside the flake
  dir). Under lazy-trees (Determinate Nix) the flake "source" is the working
  directory itself, so the extractor's walk saw untracked clutter; any
  non-root directory carrying its own .git is now skipped wholesale.